Sash-adjuster.



v C. D. TABOR.

Patented June 3, 1913.

2 SHEETS-SHEET l.

C. D. TABOR. SASH ADJUSTBR.

APPLICATION FILED SEPT. 30, 1910.

1,063,617.` I Patented June/3,1913.

2 SHEETS-SHEET 2.

EEITED sTATEs PATENT oEEroE.

CLINTON D. TABOR, OF NEW DORP, NEW YORK, ASSIGNOR T0 TABOR SASH FIXTURECOMPANY, OF NEWARK, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SASI-I-ADJUSTER.

Specification of Letters Patent.

Patented June 3, 1913.

Application led September 30, 1910. Serial No. 584,603.

To all whom t may concern:

Be it known that I, CLINTON D. TABOR, a citizen of the United States,residing at New Dorp, Staten Island, in the county and State of NewYork, have invented new and useful Improvements in Sash-Adjusters, ofwhich the following is a specification.

This invention relates to a sash adjuster which is more particularlydesigned for holding a horizontally-swinging sash in a more or less openposition.

It is the object of this invention to provide a sash adjuster of thischaracter which is particularly adapted for use on the upper part of thesash and frame where it is out of the way, and not liable to interferewith the free use of the window and is also not liable to be injured.

In the accompanyingdrawings consisting of 2 sheets: Figure 1 is anelevation of a easement window equipped with one form of my improvedsash adjuster. Fig. 2 is a top plan view of the saine. Fig. 5 is avertical transverse section in line 3 3, Fig. 1. 4 is a fragmentaryhorizontal section, on an enlarged scale, in line 4 4, Fig. 1, andshowing the sash partly opened. Fig. 5 is a fragmentary verticalsect-ion in line 5 5, Fig. 4. Figs. 6, 7 and 8 are detached perspectiveviews of different parts of the adjuster shown in Figs. 1 5. Fig. 9- isa similar View of a modified form of sash adjuster embodying myinvention.

Similar letters of lreference indicate corresponding parts throughoutthe several views.

The window shown in the drawings for illustrating my invention comprisesa frame having two upright side jambs A, A1, a horizontal main sill Bconnecting the lower ends of the side jambs, a horizontal head jamb Cconnecting the upper ends of the side jambs, a stool D arranged on themain sill and provided on its upper side with an outwardly facingshoulder d, a head stop D1 arranged on the underside of the head jainb,and a sash having two upright side stiles E, El one of which El isconnected by hinges c, c1 with the hinge jamb A1 while the other E isdetachably connected by a catch f with the lock jamb A, a lower rail Grconnecting the lower ends of the stiles and having its underside adaptedto fit behind the shoulder of the stool, and a top rail II connectingthe upper ends of the stiles Fig.

and adapted to engage the inner side of the head jamb stop.

In the closed position of the sash the same is in line with the frameand it is lowered so that its lower rail engages behind the shoulder ofthe stool, as shown in Figs. 1 and 3, thereby forming a tight jointbetween the sash and frame and preventing the passage of dust, wind,rain and snow between the same. When it is desired to open the win dow,the sash is first raised so that its lower rail clears the shoulder ofthe stool after which the sash may be swung on its hinges e, c1 into amore or less open position. The window is again closed by first swingingthe sash into line with the frame and then lowering the sash so that itslower railengages behind the shoulder of the stool. To permit of thusraising and lowering the cash, the hinges are so constructed that theleaves of the sash can slide on the leaves of the frame in a well knownmanner. Any suitable means may be employed for raising and lowering thesash, such means being generally indicated at I in Fig. 1, and may beconstructed similar to the lifting device shown in my pendingapplication, No. 385,427.

My improved sash adjuster shown in Figs. 1-8 is constructed as follows:J ,rep` resents a horizontal track or guide-bar secured to the innerside of the head jamb of the frame adjacent to the hinge side jamb andprovided on its opposite longitudinal edges with guide ways j, which arepreferably constructed in the form of flanges which are raised from thesurface of the frame, as shown in Figs. 3 and 5. Slidable horizontallyand lengthwise on t-he front side of this guide bar is a carriage Kwhich is slidingly connected with said bar by means of front and rearpairs of guide hooks or lingers la, cl which engage behind the guideiianges j, as shown in Figs. 3 and 5. L represents a draft or shiftinglink having an elevated front part Z which is pivoted by a vertical pinM or otherwise to an outwardly-projecting lug m on the front end of thecarriage while its rear part Z1 is depressed andv receives an uprightpivot pin N which is mounted on the outer end of a bracket n secured tothe adjacent part of the upper sash rail. Upon raising and lowering thesash the rear pivot pin N slides vertically in the rear end of the linkand when swinging the sash on its hinges the link moves the carriagehorizontally on the guide. bar.

In order to hold the sash positively in position and prevent the samefrom being turned by the wind or other ordinary pres sure when the sashis opened more or less, a detent device is provided which preferablyoperates frictionally and which is constructed as follows: o representsa. plurality of recesses or notches arranged in a horizontal row on theouter side of the guide bar, said notches being progressively narrowerand also preferably shallower from oney end ofthe row to the other, thewidest and deepest notch being at the front end of the guide bar and thenarrowest and shallowest at the rear end of the same. P represents adetent pawl mounted on the carriage and adapted to engage with one orthe other of said notches. This pawl is preferably so constructed thatit is capable of rolling over the guide bar from one notch to theother'and for this purpose the same is preferably constructed ofcylindrical form with its aXis arranged vertically. This cylindricaldetent pawl is arranged in the inner end of a pocket p which is formedin the lug m and is yieldingly held in engagement with the guide bar bya spring g arranged in the pocket and bearing at one end against thedetent while its other end bears against a screw g1 which closes theouter end of the pocket p, as shown in Fig.

5. When the sash is swung in line with the frame, the detent pawlengages with the widest and deepest notch and as the sash is swung openthe pawl rolls successively into one notch after the other toward therear end of the series. Inasmuch as the detent pawl is able yto projecta greater extent into a deep wide notch than into a shallow narrownotch,it requires more power to dislodge the pawl from a wide notch than froma narrow notch. The pawl therefore offers greater resistance to anypressure which tends to shift the carriage and sash when the pawl isarranged in a wide notch than when the same is arranged in a narrownotch. It follows from this that when the sash is swung into its closedor nearly closed position it requires more power to dislodge the samefrom the respective notches, because the same are comparatively wide atthis part of the guide bar while less power is required to dislodge thepawl from the notches whenthe sash is swung wide open or nearly so.Inasmuch as the leverage of the sash when subjected to wind pressurewhile in its closed or nearly closed position is greatest and least whenfully opened or nearly so, the widening of the notches toward the frontend of the row and narrowing of the same toward the rear end of the rowcompensates `for the difference in the leverage of the sash and thusenables the pawl to hold the sash reliably in place either when fullyclosed or nearly so and when fully opened or nearly so.

When the sash is in its closed position the central part of the link isarranged between a pair of supporting ears or lugs r on the rear end ofthe carriage, thereby holding this link reliably in place and preventingthe same from being shifted by the pin N as the latter slides verticallyin the link upon raising or lowering the sash. Then the sash is in itsintermediate opened position the link leaves the supporting lugs butagain enters between the same when the sash is fully opened, as shown bydotted lines in Fig. 2.

Instead of supporting the guide link against Vertical deflection bymeans of the lugs 1 when the sash is in its closed position, this effectmay be produced by the means which are shown in Fig. 9 and whichcomprise a supporting lug 'r1 arranged on the inner edge of the link andadapted to engage with a longitudinal slot 'f2 in the guide bar. In thislastmentioned construction the carriage may be shortened and the rearguide fingers or hooks 7&1 omitted, as shown in Fig. 9.

By arranging the sash adjuster at the top of the sash and frame, thesame is more sightly, it does not interfere with the full use of thewindow and the same is also not liable to become injured as frequentlyhappens to sash adjusters arranged at the bottom of the sash and frame.It will be noted that by means of this sash adjuster the sash is heldfrictionally in place at all times and can be easily shifted into a more`or less open position but the rigidity with which the same is heldvaries, the leverage being greatest and most needed when the sash isclosed or nearly so on account of the greater leverage which the sashexposes to the pressure of the wind which tends to displace the same,and the leverage being smallest and least needed when the sash is fullyopened or nearly so on account of the small displacing effect which thewind exerts against the sash in this last-mentioned position.

I claim as my invention:

1. A sash adjuster comprising a guide bar adapted to be secured to theframe of a window provided with guide fianges on its oppositelongitudinal edges, a carriage provided with guide hooks engagingvbehind said flanges, a link pivoted at one end on said carriage, abracket adapted to be secured to the sash of the window and providedwith a pivot pin which passes through the other end of said link, andmeans for supporting the central part of said link on the carriage.

2. A sash adjuster comprising a guide bar adapted to be secured to theframe of a window provided with guide flanges on its op- Locaal?l positelongitudinal edges, a carriage provided with guide hooks engaging behindsaid flanges, a link pivoted at one end on said carriage, a bracketadapted to be secured to the sash of the Window and provided With apivot pin Which passes through the other end of said link, and means forsupporting the central part of said link on the carriage comprising apair of supporting lugs arranged on the carriage and adapted to receivethe link between them.

3. A sash adjuster comprising a guide bar adapted to be secured to aWindow frame and provided With a row of notches Which are ofprogressively greater Width from the front to the rear end of the row, acarriage slidable on said bar, a detent mounted on the, carriage andengaging With said notches, and a link connected With said carriage andadapted to be connected With the sash of the Window.

4. A sash adjuster comprising a guide bar adapted to be secured to aWindow frame and provided with a row of notches Which are ofprogressively greater Width from the front to the rear end of the row, acarriage.

slidable on said bar and provided with a pocket, a rolling detentarranged in said pocket and engaging said notches, a spring operating topress said detent into said notches, and a link adapted to connect saidcarriage with the sash of the Window.

5. A sash adjuster comprising a guide bar adapted to be secured to aWindow frame and provided With a row of notches Which are ofprogressively greater Width from the front to the rear end of the row, acarriage slidable on said bar and provided With a pocket, a rollingdetent arranged in said pocket and engaging said notches, a springbearing at one end against said detent and pressing the same into saidnotches, a screw arranged in said pocket and bearing against the otherend of said spring, and a link adapted to connect said carriage With thesash of the Window.

Witness my hand this 21st day of September, 1910.

CLINTON D. TABOR. Witnesses:

A. SCHRAFFT, GEORGE SWEZEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

